Ziziphi iimbasa ze-monozygotic? Usenokuba ulivile eli gama elisetyenziselwa ukuchaza amawele, kodwa ayiqinisekanga ukuba lithetha ntoni. Ixesha eliqhelekileyo eliqhelekileyo nelisetyenziswa ngokuqhelekileyo lolo hlobo lweamawele "ngamawele" afanayo. Ngenxa yendlela yokwenza amawele e-monozygotic, bahlala bebukeka ngokufanayo kwaye baneminye into efanayo. Kungenxa yokuba ifomu le-monozygotic livela kwiqanda elilodwa elinomhlaza oluqhekekileyo lokwenza ama-embryo amabini anokuba ngamaintsana amabini.
Ngenxa yokuba abantu babini bavela kumthombo owodwa, babelana ngezixhobo zofuzo ezifanayo kwaye bangabonisa ukufana okumangalisayo. Ngaloo ndlela, bathathwa "bafana."
Igama elithi monozygotic lichaza ngokubhekiselele kulolu hlobo lweamawele kunokuba lichaze ngokufanayo. Nangona amawele angama-monozygotic afana kakhulu ngeendlela ezininzi, azinjalo ama-clones. Nangona babonakala bengafani, banobuntu obufanayo, kwaye banandipha umdla, banabantu ababini abodwa. Ixesha elithi monozygotic lichaza ngokuchanekileyo imvelaphi yabo. I-Mono = eyodwa, zygote = iqanda elikhulelweyo. Amawele afumaneke kwiqanda elilodwa elinomhlaza.
Iimbilini zeMonozygotic zenzeka njani?
Makhe sibone indlela oku kwenzeka ngayo. Ngenxa yokulala ngesondo okanye i-vitro, esinye isidoda senza iqanda elilodwa (i-oocyte). Njengoko iqanda elichumayo (zygote) lihamba ukuya kwisibeleko, iiseli ziyahlula kwaye zidibanise zibe yi-blastocyst.
Kwaye kwimeko yamawele e-monozygotic, ngenxa yezizathu ezingenakuqondwa ngokupheleleyo, i-blastocyst iyahlula ibe ngamalungu amabini ahlukeneyo kwaye iifom e zimbini. Isiphumo esiphezulu? Amawele!
Akukho nkcazelo eyenziwe ngokwesayenisi sokuba kutheni le nto yenzeka okanye yintoni ebangela ukuba. Iimbono zeMonozygotic zihlala ziyimfihlakalo.
Awuphembelelwanga ngamanye amaninzi amanqaku afaka isandla ekuhlambuleni, njengembali yentsapho , iminyaka yobudala, okanye unyango lwezityalo. Izinga le-twinning le-monozygotic lihlala lifanayo kwiintlanga kunye nabantu.
Amawele e-Monozygotic amelela kuphela ipesenti yeewele. I-United States yabhalwa malunga nama-132,000 amawele ekuzalweni ngo-2013, emele 33.7 kuzo zonke i-1,000 zokuzalwa. Sekunjalo kuphela ama-3 okanye ama-4 kuphela kuma-1 anamawele e-monozygotic.
Ungayichazela njani ukuba iiwele ziMonozygotic?
Ngamanye amaxesha, kunokwenzeka ukugqiba ukunyuka ngexesha lokukhulelwa . Ngokuxhomekeka kwithuba lokuhlukaniswa, amawele e-monozygotic aphuhliswa kunye ne-placenta ekwabelwanayo, kwaye idibene kwi-chorion enye okanye i-amnion. Ezi zibonakaliso ze-telltale, ezibonakalayo kwi-ultrasound, ziyakwazi ukubona amawele e-monozygotic. Kodwa ngokuqhelekileyo, akusaziwa. Nangona emva kokuzalwa, akunakwenzeka ukuba kusekwe utywala ngaphandle kokuqinisekiswa nguvavanyo lwe-DNA.
Nazi ezinye iindlela onokuzixelela ukuba amawele angama-monozygotic:
- Ukuba beyinkwenkwe nentombazana - ayinako ukuba i-monozygotic
- Ukuba baneentlobo zegazi ezahlukeneyo - AKAZI Monozygotic
- Ukuba kukho enye ipentecenta - i- PROBABLY monozygotic
- Ukuba kukho ii-placentas ezimbini - zisenokuba zi- POSSIBLY monozygotic
- Ukuba kukho i-monochorionic - phantse i- DEFINITELY monozygotic
- Ukuba ngaba i- monoamniotic - iFANELEkile imonozygotic
- Ukuba zibukeka zifana-ziyi-monozygotic e- POSSIBLY
- Ukuba uhlalutyo lwe-DNA lubonisa iimpawu ezihambelanayo - ziFANELEKILEYO
- Ukuba uhlalutyo lwe-DNA lubonisa ukungafani kumakishi - AKUBA ama-monozygoticMonozygotic amawele ahlala efana ngesondo. Zivela kwi-zygote enye, khumbula? Xa ikwahlukana, i-chromosomes efanayo yesini ikhona kwimibungu yomibini. Kakade ke, kunqabile kakhulu
Amawele e-Monozygotic ahlala efana ngesondo esifanayo. Zivela kwi-zygote enye, khumbula?
Xa ikwahlukana, i-chromosomes efanayo yesini ikhona kwimibungu yomibini. Ewe, kukho izinto ezingaqhelekanga . Zinto ezinqabileyo, ukuba akunakwenzeka ukuba uya kuhlangana nabo. Ngoko, kukhuselekile ukuba ucinge ukuba iiseshini zamakhwenkwe nentombazana azikho monozygotic. Amawele e-Monozygotic angaba ngamantombazana amabini okanye amakhwenkwe amabini.
Ngokufanayo, amawele e-monozygotic abelana nabo bonke i- DNA yabo. Ukufana kwazo zofuzo kuchaza ukuba kutheni bahlala bekhangeleka ngokugqithiseleyo kwaye kaninzi banomdla kunye neempawu ezifanayo. Uvavanyo lwe-DNA lufanisa iimpawu zezofuzo kwaye lunokuqinisekisa ukuba amawele angama-monozygotic. Nangona kunjalo, i-genetics ayinqumi yonke into malunga nomntu, kwaye kukho iindlela ezininzi ezinamawele afanayo ahlukileyo . Iimpembelelo zendalo, iimpikiswano ze-epigenetic, kunye namava okuphila enza ukuba kubekho ukwahlula okubabeka njengabantu abodwa.
Umthombo:
Ukufundiswa kwamawele. IYunivesithi yasePennsylvania yasePennsylvania. I-Penn Medicine iTrans Animation Library. Kufikelele ngoJulayi 7, 2015. http://www.pennmedicine.org/encyclopedia/em_DisplayAnimation.aspx?gcid=000058&ptid=17
UMartin, uJoyce A., uHamilton, uBrady E., Osterman, uMichelle JK, Curtin, uSally C., kunye noMathews, TJ "Ukuzalwa: Idatha yokugqibela ka-2013." Imibiko ye-National Vital Statistics , January 15, 2015, Vol. 64, No. 1.
Iziphumo zamawele nge-twintype. Ezininzi zaseMelika. Umbutho kaZwelonke wooMama bamaTyhubhu. Kufumaneka ngoJulayi 11, 2015. http://www.nomotc.org/index.php?option=com_content&task=view&id=67&Itemid=55
> Ukuzalwa ezininzi. Isiganeko. I-Society of Obstetricians kunye neGynecologists eCanada. Kufumaneka ngoJulayi 11, 2015. http://sogc.org/publications/multiple-birth/#incidence